Answer:
1. 135+214= 349
Add all the hundreds 100+200= 300
Add all the tens 30+10= 40
Add all the ones 5+4= 9
Add the hundreds, tens, and ones together 300+40+9= 349
So 135+214= 349
2. 226+242= 468
Add all the hundreds 200+200= 400
Add all the tens 20+40= 60
Add all the ones 6+2= 8
Add the hundreds, tens, and ones together 400+60+8= 468
So 226+242= 468